Combined gas-burner and grate-bar.



CHARLES H.' MILLER IRGARL H. MILLER.

COMBINED GAS BURNER AND GRATE BAE.

APPLILIATIONA FILED JAN. 8, 1914.V

Patented Aug. 25, 1914.

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CHARLES MH. MIILEB. AND CARL H. MILLER, 0F CLEVELAND, OHIO.

Specication of Letters Patent.

Patented Aug. 25,1914.

Application led January 8, 1914. Serial No. 811,032.

To all lwhom it may concern Be it known that we, CHAnLEs H. Mums and CARL H. MILLER, citizens of the United States, residing at Cleveland, inthe county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Combined Gas-Burners and Grate- Bars, of ywhich the following is a specification.

This invention relates to a combined gas burner and grate-bar as shown in the accompanying drawings in which- Figure 1 is a plan view of the said bar or burner with thergas jets uppermost. Fi 2 is aside elevation of the said bar partial y sectioned at one enl to show interior construction. Fig; 3 is a. plan view of the bar the reverse of Fig. 1 or with the ate side ppermost. Fig. 4 is a cross sectlon of the The bar or burner b as thus shown is designed to be used for either gas or solid fuel according to the fuel' available or that may be preferred, and can be easily changed from one use to the other by a mere reversal or `inversion of the bar. Thus, in Fig. 1, the said har is shown as having its jets g exposed on top and adapted to urn a. gaseous fuel, but this osition is whollyreversed in Fig. 3,where t e grid side or grids c are on top and the bar is in position to burn a solid fuel, like wood and coal. To these ends the said bars or burners b are tubular or hollow and preferably square or rectangular in cross section and are o n n.1'- ticularly at their intake or front en w ere s. mixer can be attached or applied for s, or they can beleft open to supply air w en solid fuel is used. In the latter case the air t0 support combustion vwill be entrained through the interior of the tube and discharged at the jetsg at the bottom of the bar m a more or lees superheated state, thus l greatly facilitating combustion. The jets g are therefore employed'whichever kind of fuel is consumed and in case of solid fuel the said bars possess the novelty of being hollow and supply heated air to combustion through a' series of small orifices distributed uniformly the entire length ofthe bar. Several of the said bars are varranged side by side as usual when placed in a stove or furnace, and any approved means ma be provided for rotating'them individual y or collectively to shake them down when used for solid fuel or to invert therrrwhen burning gas. The grids or ribs o on said bar for supporting the solid fuel extend laterally at each side and may be varied in height above the surface of the bar, and ofcourse are down and out of the way when gas is used. The sha e of the bar also is somewhat peculiar in thls that it is nearly or quite square in cross section and has a flat side with three jets g in a row transversel and on the same plane and of the same ength and affording a wide and uniform diffusion of the gas andheat.

What we claim is:

A combined gas burner and grate bar substantially square in cross section and hollow interior and provided with burner jets in series transversely' on one side and a series of transversely disposed grids on the o posite side adapted for burning solid fuel, t e said bar having an opening at one end and closed at the other andv rovided with trlnnions aty its ends on w ich it is reversible.

In testimony whereof we aix our signatures in presence of two witnesses.

CHARLES H. MILLER. CARL H. MILLER. Witnesses:

F. C. Hmmm, E. M. Flinn, 

